135231307 has 2 divisors, whose sum is σ = 135231308. Its totient is φ = 135231306.

The previous prime is 135231287. The next prime is 135231353. The reversal of 135231307 is 703132531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135231307 - 2⁷ = 135231179 is a prime.

It is not a weakly prime, because it can be changed into another prime (135231907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67615653 + 67615654.

It is an arithmetic number, because the mean of its divisors is an integer number (67615654).

Almost surely, 2^135231307 is an apocalyptic number.

135231307 is a deficient number, since it is larger than the sum of its proper divisors (1).

135231307 is an equidigital number, since it uses as much as digits as its factorization.

135231307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 135231307 is about 11628.8996470001. The cubic root of 135231307 is about 513.2856015756.

Adding to 135231307 its reverse (703132531), we get a palindrome (838363838).

The spelling of 135231307 in words is "one hundred thirty-five million, two hundred thirty-one thousand, three hundred seven".